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# Licensed under the MIT license
# http://opensource.org/licenses/mit-license.php
# Copyright 2007 - Frank Scholz <coherence@beebits.net>
from twisted.web import server, resource
from twisted.python import failure
from twisted.internet import defer
from coherence import log, SERVER_ID
from coherence.extern.et import ET, namespace_map_update
from coherence.upnp.core.utils import parse_xml
from coherence.upnp.core import soap_lite
import coherence.extern.louie as louie
class errorCode(Exception):
def __init__(self, status):
Exception.__init__(self)
self.status = status
class UPnPPublisher(resource.Resource, log.Loggable):
""" Based upon twisted.web.soap.SOAPPublisher and
extracted to remove the SOAPpy dependency
UPnP requires headers and OUT parameters to be returned
in a slightly
different way than the SOAPPublisher class does.
"""
logCategory = 'soap'
isLeaf = 1
encoding = "UTF-8"
envelope_attrib = None
def _sendResponse(self, request, response, status=200):
self.debug('_sendResponse', status, response)
if status == 200:
request.setResponseCode(200)
else:
request.setResponseCode(500)
if self.encoding is not None:
mimeType = 'text/xml; charset="%s"' % self.encoding
else:
mimeType = "text/xml"
request.setHeader("Content-type", mimeType)
request.setHeader("Content-length", str(len(response)))
request.setHeader("EXT", '')
request.setHeader("SERVER", SERVER_ID)
request.write(response)
request.finish()
def _methodNotFound(self, request, methodName):
response = soap_lite.build_soap_error(401)
self._sendResponse(request, response, status=401)
def _gotResult(self, result, request, methodName, ns):
self.debug('_gotResult', result, request, methodName, ns)
response = soap_lite.build_soap_call("{%s}%s" % (ns, methodName), result,
is_response=True,
encoding=None)
#print "SOAP-lite response", response
self._sendResponse(request, response)
def _gotError(self, failure, request, methodName, ns):
self.info('_gotError', failure, failure.value)
e = failure.value
status = 500
if isinstance(e, errorCode):
status = e.status
else:
failure.printTraceback()
response = soap_lite.build_soap_error(status)
self._sendResponse(request, response, status=status)
def lookupFunction(self, functionName):
function = getattr(self, "soap_%s" % functionName, None)
if not function:
function = getattr(self, "soap__generic", None)
if function:
return function, getattr(function, "useKeywords", False)
else:
return None, None
def render(self, request):
"""Handle a SOAP command."""
data = request.content.read()
headers = request.getAllHeaders()
self.info('soap_request:', headers)
# allow external check of data
louie.send('UPnPTest.Control.Client.CommandReceived', None, headers, data)
def print_c(e):
for c in e.getchildren():
print c, c.tag
print_c(c)
tree = parse_xml(data)
#root = tree.getroot()
#print_c(root)
body = tree.find('{http://schemas.xmlsoap.org/soap/envelope/}Body')
method = body.getchildren()[0]
methodName = method.tag
ns = None
if methodName.startswith('{') and methodName.rfind('}') > 1:
ns, methodName = methodName[1:].split('}')
args = []
kwargs = {}
for child in method.getchildren():
kwargs[child.tag] = self.decode_result(child)
args.append(kwargs[child.tag])
#p, header, body, attrs = SOAPpy.parseSOAPRPC(data, 1, 1, 1)
#methodName, args, kwargs, ns = p._name, p._aslist, p._asdict, p._ns
try:
headers['content-type'].index('text/xml')
except:
self._gotError(failure.Failure(errorCode(415)), request, methodName)
return server.NOT_DONE_YET
self.debug('headers: %r' % headers)
function, useKeywords = self.lookupFunction(methodName)
#print 'function', function, 'keywords', useKeywords, 'args', args, 'kwargs', kwargs
if not function:
self._methodNotFound(request, methodName)
return server.NOT_DONE_YET
else:
keywords = {'soap_methodName':methodName}
if(headers.has_key('user-agent') and
headers['user-agent'].find('Xbox/') == 0):
keywords['X_UPnPClient'] = 'XBox'
#if(headers.has_key('user-agent') and
# headers['user-agent'].startswith("""Mozilla/4.0 (compatible; UPnP/1.0; Windows""")):
# keywords['X_UPnPClient'] = 'XBox'
if(headers.has_key('x-av-client-info') and
headers['x-av-client-info'].find('"PLAYSTATION3') > 0):
keywords['X_UPnPClient'] = 'PLAYSTATION3'
if(headers.has_key('user-agent') and
headers['user-agent'].find('Philips-Software-WebClient/4.32') == 0):
keywords['X_UPnPClient'] = 'Philips-TV'
for k, v in kwargs.items():
keywords[str(k)] = v
self.info('call', methodName, keywords)
if hasattr(function, "useKeywords"):
d = defer.maybeDeferred(function, **keywords)
else:
d = defer.maybeDeferred(function, *args, **keywords)
d.addCallback(self._gotResult, request, methodName, ns)
d.addErrback(self._gotError, request, methodName, ns)
return server.NOT_DONE_YET
def decode_result(self, element):
type = element.get('{http://www.w3.org/1999/XMLSchema-instance}type')
if type is not None:
try:
prefix, local = type.split(":")
if prefix == 'xsd':
type = local
except ValueError:
pass
if type == "integer" or type == "int":
return int(element.text)
if type == "float" or type == "double":
return float(element.text)
if type == "boolean":
return element.text == "true"
return element.text or ""
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